OCR Text |
Show He's Gone to Measure Cosmic Rays i -X X &4 n t is vx i K 3 1 X -xX'Xi f I- - x j - " IX-i, X,X i . 7: X - X St w it rX? Vi f f , t s w iy. y4 , I I " -J "Xx- v 1 I : -X N ft" NV . ! PUOF. AUTllUK L-l. COMPT(.)N ot the University ot Chicago has started on a journey that will take him to the mountuin ranges of Panama, Peru, New Zealand, Australia. Hawaii and Alaska and on many peaks he will try to measure meas-ure the intensity of cosmic rays with the instrument with which he is here seen The device consists of a steel "Ionization chamber" containing argon. Around the chamber are spheres of lend and copper weighing 2()t' pounds. Through these walls or metal no other hut "cosmic rays" can penetrate. The effect of the rays will be to set up an electric current in t lie argon. This current cur-rent will be measured with an electrometer. |